Fig. 6
From: Direct radiation-induced effects on dental hard tissue
Raman spectral analysis of enamel and dentin in the three groups. a Comparison of Raman spectra. b Ratios of protein at 2931 cm− 1/phosphate at 960 cm− 1. With doses increasing, the protein-to-mineral ratio (2931/960 cm− 1) in enamel showed a slight increase, while the ratio in dentin decreased